Jst4Cyl
15+ Year Contributor
- 312
- 9
- Nov 8, 2006
-
New Castle,
Indiana
I kill threads evidently 

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Well, we better see some mid to high 140mph traps out of this then...Well I just got off the dyno and Im very pleased with the results. Ended up making 547hp @40-41psi and 14 degrees of timing. This was done on our local heartbreaker mustang dyno through an auto with a stock non lock up converter. It would of made more power if the control arm didnt break its bushing and pull out of its mount. From 13 degrees to 14 it picked up 20 wheel hp and ended up twisting the control arm going to 15 degrees.
Just for comparison I went 10.15 @134 making right around 400hp on this same dyno and pretty much the same setup.
"Typical" should be a bit higher; 55-56 lb/min or so at that boost level ramping up to near 60 lb/min as you get into the upper 30's.Is it typical for an hy35 to flow 52.9lbs/min at 33psi? That's what I was seeing consistently before I shattered rod #4 on my stock bottom end.
If you get one for less than 1k you'll be extremely lucky. Call JMF they at one time were going to build me a top mount t4 TS because I thought my ets built one got lost in transit. It was about 1200.00 if I remember right.Anyone know of a decent Twin Scroll T4 manifold for a decent price. Something like JHracing or RedJack.
Thanks
Rich
That .84 housing may have been your problem right there.Accordng to Geoff of Full Race you need to go minimum 1.00ar to really see top end benefits on that particular size turbo. I have a .91 but she still feels like a beast top end!Right now I have a bw s362 on the car .84 t4 twin scroll it spools great, 35psi by 4000ish in 3rd gear with no brake boost foolery, but balls out it's 2-3mph slower than my hy, airflow and fuel flow shows it sucks too. There's several other people that spent the money for the t/s stuff and are badly dissapointed.